Main valve mechanism of compressed air nailing machine

Details Main valve mechanism of compressed air nailing machine Main valve mechanism of compressed air nailing machine

2005-08-15

2008-11-18

Smith, Scott A. (Department: 3721)

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

C227S008000

Reexamination Certificate

active

07451903

ABSTRACT:
An air intake valve seat24is formed by mounting a cylinder seal29of rubber or the like from an upper face of a ring-shaped flange portion28formed to project from an outer peripheral face of a strike cylinder15over to an upper end portion of the strike cylinder15to cover surfaces thereof. A main valve21in a ring shape is arranged along an outer periphery of the strike cylinder15on an upper side of a ring-shaped flange portion28. An outer peripheral edge portion30of a piston stop18of rubber or the like arranged on an upper side of the strike cylinder15is arranged to extend in a lower direction from an upper end portion along an outer peripheral face of the strike cylinder15to thereby form an air exhaust valve seat25at a lower end of the outer peripheral edge portion30. In addition, an air intake/exhaust path32for guiding compressed air from the main valve21to an upper end edge of the strike cylinder15is formed between an outer peripheral face of the cylinder seal29and an inner peripheral face of the outer peripheral edge portion30of the piston stop19.

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